component
P4SMA12A
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech TVS, DO-214AC(SMA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownP4SMA12A
Yangzhou Yangjie Elec Tech · TVS · DO-214AC(SMA)
P4SMA12A from Yangzhou Yangjie Elec Tech, in a DO-214AC(SMA). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode; on the unidirectional P4SMA12A the band marks this end, with VBR 11.40-12.60 V at 1 mA, VRWM 10.2 V and clamping voltage 16.7 V at IPP 23.95 A. |
| 2 | A | passive | Anode; the unmarked terminal of the unidirectional P4SMA12A (the bidirectional P4SMA12CA has no polarity marking), mounted on 5.0 x 5.0 mm copper pads per the ratings. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | DO-214AC(SMA) |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 11.4 | 12.6 | V | @ IT = 1 mA | 2 | |
| Test current | IT | 1 | mA | Pulse test: tp≤50ms | 2 | ||
| Maximum Reverse Leakage | IR | 5 | μA | @ VRWM | 2 | ||
| Working Peak Reverse Voltage | VRWM | 10.2 | V | 2 | |||
| Maximum Reverse Surge Current | IPP | 23.95 | A | 10/1000us waveform | 2 | ||
| Maximum Clamping Voltage | Vc | 16.7 | V | @ IPP | 2 | ||
| Maximum instantaneous forward voltage | VF | 3.5 | V | at 25A, unidirectional only; 3.5 for VBR<200V | 1 | ||
| Maximum instantaneous forward voltage | VF | 1.5 | V | at 1A, unidirectional only | 1 | ||
| Peak power dissipation | PPPM | 400 | W | 10/1000us waveform | 1 | ||
| Power dissipation | PD | 1 | W | on infinite heat sink at TL=75℃ | 1 | ||
| Peak forward surge current | IFSM | 40 | A | 8.3 ms single half sine-wave, unidirectional only | 1 | ||
| Operating junction and storage temperature range | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJL | 30 | ℃/W | Typical | 2 | ||
| Thermal resistance junction to ambient | RθJA | 120 | ℃/W | Typical | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
P4SMA12A - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
p4sma12a-etched.step/p4sma12a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);p4sma12a.step/p4sma12a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (6 pp, sha256
257386f7d53ca6f9, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).